diff options
Diffstat (limited to 'src/corelib/statemachine/qhistorystate.cpp')
| -rw-r--r-- | src/corelib/statemachine/qhistorystate.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/corelib/statemachine/qhistorystate.cpp b/src/corelib/statemachine/qhistorystate.cpp index c3361ad17e..338c89c688 100644 --- a/src/corelib/statemachine/qhistorystate.cpp +++ b/src/corelib/statemachine/qhistorystate.cpp @@ -209,6 +209,11 @@ QAbstractState *QHistoryState::defaultState() const return d->defaultTransition ? d->defaultTransition->targetState() : Q_NULLPTR; } +static inline bool isSoleEntry(const QList<QAbstractState*> &states, const QAbstractState * state) +{ + return states.size() == 1 && states.first() == state; +} + /*! Sets this history state's default state to be the given \a state. \a state must be a sibling of this history state. @@ -224,9 +229,7 @@ void QHistoryState::setDefaultState(QAbstractState *state) "to this history state's group (%p)", state, parentState()); return; } - if (!d->defaultTransition - || d->defaultTransition->targetStates().size() != 1 - || d->defaultTransition->targetStates().first() != state) { + if (!d->defaultTransition || !isSoleEntry(d->defaultTransition->targetStates(), state)) { if (!d->defaultTransition || !qobject_cast<DefaultStateTransition*>(d->defaultTransition)) { d->defaultTransition = new DefaultStateTransition(this, state); emit defaultTransitionChanged(QHistoryState::QPrivateSignal()); |